Kawasaki KH-4 - Wikipedia

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Japanese light utility helicopter
KH-4
A KH-4 at Glen Helen NT Australia.
General information
TypeUtility helicopter
National originJapan
ManufacturerKawasaki
Number built211
History
First flightAugust 1962[1]
Developed fromBell 47

The Kawasaki KH-4 was a light utility helicopter produced in Japan in the 1960s as a development of the Bell 47 that Kawasaki had been building under licence since 1952. The most visible difference between the KH-4 and its forerunner was its new and enlarged cabin. This was fully enclosed, (although the side doors were removable), and provided seating for three passengers, side-by-side on a bench seat behind the pilot's seat. The helicopter was provided with a new control system, revised instrumentation, and larger fuel tank.[2]

A total of 211 KH-4s were built, including four that were modified from existing Bell 47Gs. The vast majority of these were bought by civil operators, although some were purchased by the military forces of Japan and Thailand.[2]

Operators

[edit] Japan
  • Japan Ground Self-Defense Force - 14[3]
  • Japan Maritime Self-Defense Force[4]
  • Maritime Safety Agency - 6[5]
Thailand
  • Royal Thai Air Force[6]

Specifications

[edit]
An Australian registered KH-4 in 2010.

Data from Jane's All The World's Aircraft 1966–67[7]

General characteristics

  • Crew: 1
  • Capacity: 3 passengers
  • Length: 13.30 m (43 ft 8 in) (overall length), 9.93 m (32 ft 7 in) (fuselage length)
  • Height: 2.84 m (9 ft 4 in)
  • Empty weight: 816 kg (1,799 lb)
  • Max takeoff weight: 1,293 kg (2,851 lb)
  • Powerplant: 1 × Lycoming TVO-435-B1A air-cooled six-cylinder horizontally-opposed engine, 200 kW (270 hp)
  • Main rotor diameter: 11.32 m (37 ft 2 in)
  • Main rotor area: 100.6 m2 (1,083 sq ft)

Performance

  • Maximum speed: 169 km/h (105 mph, 91 kn)
  • Cruise speed: 140 km/h (87 mph, 76 kn)
  • Range: 400 km (250 mi, 220 nmi)
  • Endurance: 4 hr 6 min
  • Service ceiling: 5,640 m (18,500 ft)
  • Rate of climb: 4.3 m/s (850 ft/min)

See also

[edit]

Related development

  • Agusta A.115
  • Bell 47
  • Bell 47J Ranger
  • Meridionali/Agusta EMA 124

Aircraft of comparable role, configuration, and era

  • Canadian Home Rotors Safari
  • Hiller OH-23 Raven
  • Hughes TH-55 Osage
  • Sikorsky S-300

References

[edit]
  1. ^ Simpson 1998, p. 125
  2. ^ a b Simpson 1998, p. 123
  3. ^ Andrade 1982, pp. 133–134
  4. ^ Stroud 1971, p. 578
  5. ^ Andrade 1982, p. 137
  6. ^ Stroud 1971, p. 581
  7. ^ Taylor 1966, p. 105
  • Andrade, John (1982). Militair 1982. London: Aviation Press Limited.
  • Simpson, R. W. (1998). Airlife's Helicopters and Rotorcraft. Ramsbury: Airlife Publishing. pp. 123–25.
  • Stroud, Michael (7 October 1971). "Military Helicopter Market". Flight International. Vol. 100, no. 3265. pp. 574–581. Retrieved 26 April 2019.
  • Taylor, John W. R. (1966). Jane's All The World's Aircraft 1966–67. London: Sampson Low, Marston & Company.
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 557.
[edit] Wikimedia Commons has media related to Kawasaki helicopters.
  • v
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Bell Model 47 family
Modelnumbers
  • 30
  • 47
    • J/K
  • 201
  • 207
Civiliannames
  • Airmailer
  • Ranger
Militarydesignations
  • R-13
  • H-13
    • F
    • J/P/N/Q/R
  • HTL
    • -7
  • HUL
Foreignproduction
Agusta(Italy)
  • A.115
  • EMA 124
Kawasaki(Japan)
  • KH-4
Westland(United Kingdom)
  • Sioux
Modifications
Continental Copters
  • El Tomcat
Texas Helicopter
  • M74 Wasp
  • M79 Wasp II
  • M79T Jet Wasp II
Groups
  • Scott's – Bell 47
See also Bell Huey family Bell JetRanger family
  • v
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Kawasaki aircraft
Company designations
  • KAL-1
  • KAL-2
  • KAT-1
  • KAQ-1
  • KDA-2
  • KDA-3
  • KDA-5
  • KDC-2
  • KDC-5
  • KH-4
  • YPX
Imperial Japanese Army designations
  • Type 87
  • Type 88
  • Type 92
  • Ki-3
  • Ki-5
  • Ki-10
  • Ki-22
  • Ki-28
  • Ki-32
  • Ki-38
  • Ki-45
  • Ki-48
  • Ki-56
  • Ki-60
  • Ki-61
  • Ki-64
  • Ki-66
  • Ki-78
  • Ki-81
  • Ki-85
  • Ki-88
  • Ki-89
  • Ki-91
  • Ki-96
  • Ki-100
  • Ki-102
  • Ki-108
  • Ki-119
  • Ki-148
  • Ki-174
Japanese Self-Defense Force designations
  • C-1
  • C-2
  • OH-1
  • P-1
  • P-2J
  • T-4
Joint ventures
  • BK 117
  • BK 117-C2
Licensed production
  • Bell 47
  • Hughes 500
  • Hughes 369
  • Boeing-Vertol V-107
  • Boeing-Vertol CH-47
  • Lockheed T-33
  • Lockheed P-2
  • Lockheed P-3C
World War II Allied reporting names
  • Bob
  • Lily
  • Mary
  • Nick
  • Perry
  • Randy
  • Rob
  • Thalia
  • Tony
  • v
  • t
  • e
Royal Thai Armed Forces helicopter designations
H(Helicopter)
  • H.1
    • A
  • H.2
  • H.3
  • H.4
  • H.5
  • H.6
    • A
    • B/C/E
  • H.7
  • H.8
  • H.9
  • H.10
  • H.11
  • H.12
  • H.13
H.PhT(Mapping helicopter)
  • H.PhT.1
  • H.PhT.2
H.TPh(Anti-surface ship helicopter)
  • H.TPh.1
H.PD(Anti-submarine helicopter)
  • H.PD.1
H.LL(Transport helicopter)
  • H.LL.1
  • H.LL.2
  • H.LL.3
  • H.LL.4
  • H.LL.5

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